define(['./_arrayEach', './_arrayIncludes'], function(arrayEach, arrayIncludes) {

  /** Used to compose bitmasks for function metadata. */
  var WRAP_BIND_FLAG = 1,
      WRAP_BIND_KEY_FLAG = 2,
      WRAP_CURRY_FLAG = 8,
      WRAP_CURRY_RIGHT_FLAG = 16,
      WRAP_PARTIAL_FLAG = 32,
      WRAP_PARTIAL_RIGHT_FLAG = 64,
      WRAP_ARY_FLAG = 128,
      WRAP_REARG_FLAG = 256,
      WRAP_FLIP_FLAG = 512;

  /** Used to associate wrap methods with their bit flags. */
  var wrapFlags = [
    ['ary', WRAP_ARY_FLAG],
    ['bind', WRAP_BIND_FLAG],
    ['bindKey', WRAP_BIND_KEY_FLAG],
    ['curry', WRAP_CURRY_FLAG],
    ['curryRight', WRAP_CURRY_RIGHT_FLAG],
    ['flip', WRAP_FLIP_FLAG],
    ['partial', WRAP_PARTIAL_FLAG],
    ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],
    ['rearg', WRAP_REARG_FLAG]
  ];

  /**
   * Updates wrapper `details` based on `bitmask` flags.
   *
   * @private
   * @returns {Array} details The details to modify.
   * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
   * @returns {Array} Returns `details`.
   */
  function updateWrapDetails(details, bitmask) {
    arrayEach(wrapFlags, function(pair) {
      var value = '_.' + pair[0];
      if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {
        details.push(value);
      }
    });
    return details.sort();
  }

  return updateWrapDetails;
});
